Source: Marita Knobel Our grandfather was Johann Carl Knobel. By the way, he wrote his name with two “n” ´s– our great grandparents were apparently very particular about this. Johann Carl (called John) was born in 1879 and was Missionary, Naturalist, Trader and Hunter, exactly as written in the website. I was also surprised to find that Jurg was born in 1881. They were both interested in collecting and discovering plants and Jurg apparently was one of the founding members of the Pretoria Botanical Gardens. The information about the plants that they discovered is a bit confusing. In some websites it says that my grandfather discovered the plant Stapelia knobelii Phillips in 1929 in Bechuanaland (now called Botswana). But it is definite that Jurg discovered the plant Euphorbia knobelii Letty in 1934 in the North-West Province. Look at: http://kiki.huh.harvard.edu/databases/botanist_search.php?mode=details&id=34120 Interestingly enough, there is another Knobel who was an amateur botanist! W. Knobel discovered the Gomphostigma incanum Oliv. near Colesberg in 1877. He is definitely related to Deon. Look at: http://plants.jstor.org/specimen/k000426762?s=t